Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_apple_csp / lib / FEESignatureObject.h

diff --git a/Security/libsecurity_apple_csp/lib/FEESignatureObject.h b/Security/libsecurity_apple_csp/lib/FEESignatureObject.h
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+/*
+ * Copyright (c) 2000-2001,2011,2013-2014 Apple Inc. All Rights Reserved.
+ * 
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please obtain
+ * a copy of the License at http://www.apple.com/publicsource and read it before
+ * using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
+ * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
+ * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
+ * specific language governing rights and limitations under the License.
+ */
+
+
+/*
+ * FEESignatureObject.h - FEE-based raw sign/verify classes
+ */
+
+#ifdef CRYPTKIT_CSP_ENABLE
+
+#ifndef        _FEE_SIGNATURE_OBJECT_H_
+#define _FEE_SIGNATURE_OBJECT_H_
+
+#include <security_cryptkit/feePublicKey.h>
+#include <security_cryptkit/feeECDSA.h>
+#include "FEECSPUtils.h"
+#include "CryptKitSpace.h"
+#include <RawSigner.h>
+#include <AppleCSPSession.h>
+
+namespace CryptKit {
+
+/* 
+ * Common raw FEE sign/verify class.
+ */
+class FEESigner : public RawSigner {
+public:
+       FEESigner(
+               feeRandFcn              randFcn,
+               void                    *randRef,
+               AppleCSPSession &session,
+               Allocator       &alloc) : 
+                       RawSigner(alloc, CSSM_ALGID_NONE),
+                       mFeeKey(NULL),
+                       mWeMallocdFeeKey(false),
+                       mRandFcn(randFcn),
+                       mRandRef(randRef),
+                       mSession(session) { }
+                       
+       virtual ~FEESigner();
+       
+       /* reusable init */
+       void signerInit(
+               const Context   &context,
+               bool                    isSigning);
+       
+       /* 
+        * obtain key from context, validate, convert to native FEE key
+        */
+       void keyFromContext(
+               const Context   &context);
+
+protected:
+               feePubKey               mFeeKey;
+               bool                    mWeMallocdFeeKey;
+               feeRandFcn              mRandFcn;
+               void                    *mRandRef;
+               AppleCSPSession &mSession;
+};
+
+/* 
+ * And two implementations.
+ *
+ * Native FEE signature, ElGamal style.
+ */
+class FEERawSigner : public FEESigner
+{
+public:
+       FEERawSigner(
+               feeRandFcn              randFcn,
+               void                    *randRef,
+               AppleCSPSession &session,
+               Allocator       &alloc) : 
+                       FEESigner(randFcn, randRef, session, alloc) { };
+                       
+       ~FEERawSigner() { }
+       
+       /* sign */
+       void sign(
+               const void              *data, 
+               size_t                  dataLen,
+               void                    *sig,   
+               size_t                  *sigLen);       /* IN/OUT */
+               
+       /* verify */
+       void verify(
+               const void              *data, 
+               size_t                  dataLen,
+               const void              *sig,                   
+               size_t                  sigLen);        
+               
+       /* works for both, but only used for signing */
+       size_t maxSigSize();
+};
+
+/*
+ * FEE signature, ECDSA style.
+ */
+class FEEECDSASigner : public FEESigner
+{
+public:
+       FEEECDSASigner(
+               feeRandFcn              randFcn,
+               void                    *randRef,
+               AppleCSPSession &session,
+               Allocator       &alloc) : 
+                       FEESigner(randFcn, randRef, session, alloc) { };
+                       
+       ~FEEECDSASigner() { }
+       
+       /* sign */
+       void sign(
+               const void              *data, 
+               size_t                  dataLen,
+               void                    *sig,   
+               size_t                  *sigLen);       /* IN/OUT */
+               
+       /* verify */
+       void verify(
+               const void              *data, 
+               size_t                  dataLen,
+               const void              *sig,                   
+               size_t                  sigLen);        
+               
+       /* works for both, but only used for signing */
+       size_t maxSigSize();
+};
+
+} /* namespace CryptKit */
+
+#endif /* _FEE_SIGNATURE_OBJECT_H_ */
+#endif /* CRYPTKIT_CSP_ENABLE */